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Oksana_A [137]
3 years ago
6

I need help with question 2

Mathematics
2 answers:
emmasim [6.3K]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Since BD and DC are congruent, we know that DA bisects <BAC.

This means that <BAD and <CAD are congruent.

We can set up an equation for that.

3x+7=10x-7

Subtract 3x from both sides.

3x-3x+7=10x-3x-7

7=7x-7

Add 7 to both sides.

7+7=7x-7+7

14=7x

Divide both sides by 7.

x=2

Plug that back into expression for m<CAD.

10x-7

10(2)-7

20-7

13 degrees.

ANEK [815]3 years ago
4 0

Answer:

C

Step-by-step explanation:

Angle CAD and angle BAD are congruent.

10x - 7 = 3x+ 7

10x - 3x = 7 + 7

7x = 14

(7x)/7 = 14/7

x = 2

Plug in x as 2.

10(2) - 7

20 - 7

= 13

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Lmn is congruent to Xyz<br> What segment is congruent to YZ
bixtya [17]

To be congruent, the letters need to be in the same orientation.

Since YZ are the last two letters in XYZ, they would be congruent to the last two letters in LMN.

YZ is concruent to MN.

5 0
3 years ago
Write an equation to model growth or decay in the following scenario. A stock is declining at a rate of 25% of its value every 2
yawa3891 [41]

The exponential function that models this situation is:

y(t) = 225(0.75)^{\frac{t}{2}}

------------------------------------------

A decaying exponential function has the following format:

y(t) = y(0)(1 - r)^t

In which:

  • y(0) is the initial value.
  • r is the decay rate, as a decimal.

In this problem:

  • The stock started at $225, thus y(0) = 225.
  • Declines at a rate of 25% every 2 weeks, thus r = 0.25, t = \frac{t}{2}

The equation is:

y(t) = y(0)(1 - r)^t

y(t) = 225(1 - 0.25)^{\frac{t}{2}}

y(t) = 225(0.75)^{\frac{t}{2}}

A similar problem is given at brainly.com/question/24282972

3 0
3 years ago
1.)Which two numbers on the number line have an absolute value of 1?
Naddik [55]

Absolute value is defined as the distance of a number from zero on a number line.

Since, the distance can never be negative, hence, absolute value can never be negative.

For example 1 is 1 away from the origin and -1 is also, 1 away from the origin.

Therefore, absolute value of both -1 and 1 is 1. Mathematically, we can write

|-1| =1

|1|=1

Therefore, the number 1 and -1 on the number line have an absolute value of 1.


4 0
3 years ago
How many yards are equivalent to 2500 meters
quester [9]

Answer:

2286

Step-by-step explanation:

look up yards to meters

2500 yards = 2286 meters B)

3 0
4 years ago
Read 2 more answers
K(t) = 13t - 2<br> k(3) =
sergejj [24]

Answer:

k=13t/t+6

Step-by-step explanation:

kt=13t−2k(3)

Step 1: Add 6k to both sides.

kt+6k=−6k+13t+6k

kt+6k=13t

Step 2: Factor out variable k.

k(t+6)=13t

Step 3: Divide both sides by t+6.

k(t+6)t+6=13tt+6

k=13t/t+6

6 0
4 years ago
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